 | | I wish Lego made an "Anti-Backlash Gear"
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Tech question for us: Any body know what an Anti-Backlash gear is? If Lego made one, we would all have super precise Robots and mechanisisms! BERG carries them... Anybody know what I'm talking about? (24 years ago, 3-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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Isnt that the same as the white clutch gear. Here is a link to it: (...) (24 years ago, 3-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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The closest thing to an anti-backlash gear is the Conical gear (a misnomer). It can be used to load a gear train. I have used this in a design by Iain Hendry. (URL) have tried using a second motor in the gear train with a slight reverse current. (...) (24 years ago, 3-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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(...) I have done quite a lot of experimentation to limit backlash in certain situations. First of all, it is quite easy to make little shims from the yellow plastic material the parts are seperated into in new sets. I make ones with 0.2" holes in (...) (24 years ago, 3-Apr-01, to lugnet.robotics)
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| | Re: Lubricating technic turntables
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How about graphite? I don't think that will degrade plastic. (...) (24 years ago, 3-Apr-01, to lugnet.robotics)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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Interesting point about the rubber bands vs the resultant torque loss, it is true that the opposing forces on the gears along with the "rubber pull" will tender them to one direction or another in concert... However,...and I say this kindly and (...) (24 years ago, 3-Apr-01, to lugnet.robotics)
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| | Re: Lubricating technic turntables
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yeah, probably work real good,,,,,interesting , But I would'nt use it my self. (...) (24 years ago, 3-Apr-01, to lugnet.robotics)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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>>>>>> However,...and I say this kindly and jokingly, ....Cheater!!! You experimented (cheated) with washers of a sort, gaaa.. <<<<<< Hey! real engineering uses shims (not washers ;) And I can honestly put my hand on my heart and say everything in (...) (24 years ago, 3-Apr-01, to lugnet.robotics)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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Whoa, I gotta think about this one for awhile..... (...) (24 years ago, 3-Apr-01, to lugnet.robotics, lugnet.technic)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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(...) one would do with this. The Lego Mindstorms booklet doesn't explain it at all. (My host laptop computer runs Linux, and so if it is explained in the nifty multimedia CD-ROM that came with Mindstorms, I've missed it.) It took me weeks to (...) (24 years ago, 3-Apr-01, to lugnet.robotics)
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